The reason no ports on a carry weapon is because if it gets near your eye,possible severe damage.If it changes to a grapple vs gunfight(multiple assailants),the port becomes a negative in my opinion.Try shooting any ported pistol with something that can move next to it and see how far it does travel.

So other than the mag release and the option of a 5" barrel, what is so different from the original PPQ? I'll have to pass because Walther made me fall in love with the paddle release on the original PPQ.